(19)
(11) EP 1 355 326 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.01.2005 Bulletin 2005/01

(43) Date of publication A2:
22.10.2003 Bulletin 2003/43

(21) Application number: 03009011.2

(22) Date of filing: 17.04.2003
(51) International Patent Classification (IPC)7: H01C 10/30, H01C 17/065, H01C 10/30
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 19.04.2002 JP 2002116956

(71) Applicant: ALPS ELECTRIC CO., LTD.
Tokyo 145-8501 (JP)

(72) Inventors:
  • Taguchi, Yoshihiro, c/o Alps Electric Co., Ltd.
    Tokyo 145-8501 (JP)
  • Satou, Shunetsu, c/o Alps Electric Co., Ltd.
    Tokyo 145-8501 (JP)

(74) Representative: Klunker . Schmitt-Nilson . Hirsch 
Winzererstrasse 106
80797 München
80797 München (DE)

   


(54) Resistor and method for producing the resistor


(57) A resistor (1) is produced so that dispersity of carbon black in the resistor is low in a surface of the resistor and high in an inner part thereof. In the surface of the resistor, current paths are formed by the carbon black with poor dispersity to minimize a contact resistance of a sliding contact (5) or the like. In the inner part of the resistor, the carbon black is uniformly dispersed to increase a resistance. Accordingly, a total resistance value can be prevented from lowering.






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